; RUN: opt < %s -inferattrs -S | FileCheck %s
; RUN: opt < %s -passes=inferattrs -S | FileCheck %s
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.8.0 -inferattrs -S | FileCheck -check-prefix=CHECK-POSIX %s

declare i8* @fopen(i8*, i8*)
; CHECK: declare noalias i8* @fopen(i8* nocapture readonly, i8* nocapture readonly) [[G0:#[0-9]]] 

declare i8 @strlen(i8*)
; CHECK: declare i8 @strlen(i8* nocapture) [[G1:#[0-9]]]

declare i32* @realloc(i32*, i32)
; CHECK: declare noalias i32* @realloc(i32* nocapture, i32) [[G0]]

; Test deliberately wrong declaration

declare i32 @strcpy(...)
; CHECK: declare i32 @strcpy(...)

; operator new routines
declare i8* @_Znwj(i64)
; CHECK: declare noalias nonnull i8* @_Znwj(i64)
declare i8* @_Znwm(i64)
; CHECK: declare noalias nonnull i8* @_Znwm(i64)

declare void @memset_pattern16(i8*, i8*, i64)
; CHECK: declare void @memset_pattern16(i8*, i8*, i64)
; CHECK-POSIX: declare void @memset_pattern16(i8*, i8* readonly, i64) [[G2:#[0-9]+]]

declare i32 @gettimeofday(i8*, i8*)
; CHECK-POSIX: declare i32 @gettimeofday(i8* nocapture, i8* nocapture) [[G0:#[0-9]+]]

; CHECK: attributes [[G0]] = { nounwind }
; CHECK: attributes [[G1]] = { nounwind readonly }
; CHECK-POSIX: attributes [[G0]] = { nounwind }
; CHECK-POSIX: attributes [[G2]] = { argmemonly }